Una vivienda consume una media de 12 kWh diarios y la energía eléctrica puede provenir de una central nuclear o de una central térmica que usa carbón de poder calorífico 6861 kcal/kg, ambas trabajando con un rendimiento del 32 %. Calcula: a) La masa de uranio para mantener la energía de la vivienda durante un año. b) La masa de carbón necesaria para el mismo período.

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '

The slope of a velocity time graph over any interval of time gives the during that interval

Apoint charge +q is at the origin. a spherical gaussian surface centered at the origin encloses +q. so does a cubical surface centered at the origin and with edges parallel to the axes. select "true" or "false" for each statement below. the electric flux through the spherical surface is greater than that through the cubical surface. suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. the flux through both surfaces remains unchanged. the area vector and the e-field vector point in the same direction for all points on the spherical surface. the e-field at all points on the spherical surface is equal due to spherical symmetry. the flux through the spherical gaussian surface is independent of its radius.